Ahmed, R. K., K. H. Sulaiman, M. K. Hasan, and A. S. Dauod. “Anabolic-Androgenic Steroid Use Among Bodybuilders in Erbil City”. Zanco Journal of Medical Sciences (Zanco J Med Sci), vol. 25, no. 3, Dec. 2021, pp. 657-65, doi:10.15218/zjms.2021.032.